Patents by Inventor Paul D. Carfagna

Paul D. Carfagna has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6857852
    Abstract: A method for removing pollutants from a gas such as air includes attaching a multi-layer stack of sheets to the surface of a fan blade. The sheets have a tacky surface disposed on their outward facing side, so that as the fan blade rotates pollutants are captured by the tacky surface. When the tacky surface of the top most sheet becomes contaminated with pollutants, it is peeled off to expose a clean uncontaminated next lower sheet. In an embodiment of the invention, each sheet has a tab which facilitates the identification and removal of the topmost sheet when it becomes contaminated with pollutants.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: February 22, 2005
    Inventors: Nancy A. Carfagna, Paul D. Carfagna
  • Patent number: 6779976
    Abstract: A method for removing pollutants from a gas such as air includes attaching a multi-layer stack of sheets to the surface of a fan blade. The sheets have a tacky surface disposed on their outward facing side, so that as the fan blade rotates pollutants are captured by the tacky surface. When the tacky surface of the top most sheet becomes contaminated with pollutants, it is peeled off to expose a clean uncontaminated next lower sheet.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: August 24, 2004
    Inventors: Nancy A. Carfagna, Paul D. Carfagna